update,

scripts/wait_server_ready.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+output=""
+
+echo 'waiting for server startup'
+
+while [[ "$output" != "helloworld "$1 ]]
+do
+    output=$(curl https://$1.louislabs.com 2>/dev/null)
+    sleep 1
+
+    echo 'sleep a while ...'
+done
+
+echo 'server ready'